The Thinking Maps® model program consists of eight maps that correspond with fundamental thinking processes. The Circle Map is used for defining in context; the Bubble Map, describing with adjectives; the Flow Map, sequencing and ordering; the Brace Map, identifying part/whole relationships; the Tree Map, classifying/grouping; the Double Bubble Map, comparing and contrasting; the Multi-Flow Map, analyzing causes and effects; and the Bridge Map, seeing analogies. These maps are a "common visual language" for students in all subject areas (Grades K-12).